JP7052269B2 - Information processing system and program - Google Patents

Description

The present invention relates to an information processing system and a program.

One of the information processing systems is an electronic conference system. In an electronic conference system, in a plurality of terminals functioning as so-called slave units (hereinafter referred to as "sub-terminals"), an image displayed on each sub-terminal is a single terminal functioning as a so-called master unit (hereinafter referred to as "main terminal"). It is controlled synchronously with the image of).
On the other hand, from the viewpoint of convenience of the user who operates the slave terminal, one display screen of one slave terminal is divided into a plurality of areas, and the image controlled synchronously with the image of the main terminal and the image of the main terminal are used. Is also considered a technique for displaying asynchronous images (extended images) in parallel.

Japanese Unexamined Patent Publication No. 2016-31542

In the method of dividing one display screen prepared in the slave terminal into a plurality of areas and displaying a plurality of images in parallel, the image size is smaller than the case where each image is displayed alone, so that the user's operability is improved. descend. If these two images can be displayed individually on two independent sub-terminals, it is easy to check the images, but the operations of the two sub-terminals are essentially independent. Therefore, it is necessary to operate each slave terminal individually, but this impairs the operability of the user.

An object of the present invention is to improve the operability of a user who uses a plurality of slave terminals as compared with the case where a plurality of independently operating slave terminals are individually operated.

The invention according to claim 1 is a first function of determining whether the own terminal is a slave terminal that operates by receiving an instruction from the main terminal and is a slave terminal that belongs to a specific subset. Then, the own terminal issues an instruction to another subordinate terminal in the subset, and the image displayed on the screen of the own terminal is linked to the image displayed on the main terminal via the server. Whether it is a terminal or a second slave terminal that operates in response to an instruction from the first slave terminal and that the displayed image is linked to the image displayed on the screen of the first slave terminal via a server. When the own terminal operates as the first slave terminal, the second function for determining and the image corresponding to a part of the image displayed on the screen of the main terminal are displayed on the second slave terminal via the server. When the own terminal operates as the first slave terminal, the first operator for operating the image displayed on the own terminal on the screen of the own terminal and the second slave terminal are used. The fourth function for displaying the second operator for the operation on the image displayed on the screen of the above and the control for the image displayed on the screen of the second slave terminal are controlled on the second operator. It is a program for realizing the fifth function of transmitting the second slave terminal to the destination via the server when it is received through the operation.
The invention according to claim 2 receives an instruction of a magnification of an image displayed on the second slave terminal through an operation on the second operator, and the fifth function is an image of the main terminal. The program according to claim 1, wherein an instruction for displaying a part of the main terminal at a magnification different from that of the main terminal is transmitted.
The invention according to claim 3 receives an instruction to enlarge an image displayed on the second slave terminal through an operation on the second operator, and the fifth function is an image of the main terminal. The program according to claim 2, wherein an instruction for enlarging and displaying a part of the above is transmitted.
The invention according to claim 4 is the program according to claim 1, wherein the part of the image of the main terminal is a photograph, a figure, or a table.
The invention according to claim 5 corresponds to the part of the image of the main terminal when the own terminal operates as the first sub-terminal, and the own terminal has an image different from that of the second sub-terminal. The program according to claim 1, wherein the computer is made to execute the sixth function displayed on the screen of the above.
The invention according to claim 6 displays an image of the main terminal on the screen of the second slave terminal at a magnification different from that of the own terminal when the own terminal operates as the first slave terminal. The program according to claim 5.
The invention according to claim 7 is composed of a plurality of information terminals, and one of the plurality of information terminals is a slave terminal in which the own terminal operates in response to an instruction from the main terminal, and is specified. The first function of determining whether the terminal belongs to the subset of the above, and the own terminal issues an instruction to other subordinate terminals in the subset, and the image displayed on the screen of the own terminal is the main. The first slave terminal linked to the image displayed on the terminal via the server or the operation is performed in response to the instruction of the first slave terminal, and the displayed image is displayed on the screen of the first slave terminal. The second function of determining whether the image is linked to the second slave terminal via the server, and the image displayed on the screen of the main terminal when the own terminal operates as the first slave terminal. The third function of displaying the image corresponding to a part on the second slave terminal via the server, and when the own terminal operates as the first slave terminal, it is displayed on the own terminal on the screen of the own terminal. A fourth function for displaying a first operator for operating an image and a second operator for operating an image displayed on the screen of the second sub-terminal, and a fourth function of the second sub-terminal. In the information processing system that executes the fifth function of transmitting the control to the image displayed on the screen to the second slave terminal via the server when the control is received through the operation to the second operator. be.

According to the first aspect of the present invention, it is possible to improve the operability of a user who uses a plurality of slave terminals as compared with the case where a plurality of independently operating slave terminals are individually operated.
According to the second aspect of the present invention, it is possible to improve the operability of a user who uses a plurality of slave terminals.
According to the third aspect of the present invention, it is possible to improve the operability of a user who uses a plurality of slave terminals.
According to the invention of claim 4, it is possible to improve the operability of a user who uses a plurality of slave terminals.
According to the fifth aspect of the present invention, it is possible to improve the operability of a user who uses a plurality of slave terminals.
According to the invention of claim 6 , the operability of a user who uses a plurality of slave terminals can be improved.
According to the invention of claim 7 , the operability of a user who uses a plurality of slave terminals can be improved as compared with the case where a plurality of independently operating slave terminals are individually operated.

It is a figure explaining an example of the information terminal which constitutes a network system. It is a figure explaining the example of the electronic conference system built on the network system. It is a figure explaining the configuration example of the electronic conference system used in this embodiment. It is a figure explaining the relationship of the screen displayed on the display part of the main terminal, the 1st sub-terminal, and the 2nd sub-terminal. It is a figure explaining an example in which a subset is composed of three sub-terminals. It is a figure which showed the hardware configuration example of the server apparatus in this embodiment. It is a block diagram which shows the functional configuration example of the information terminal which constitutes the electronic conference system in this embodiment. It is a figure which shows an example of the operation which registers the terminal which participates in an electronic conference system as a subset. It is a figure which shows an example of the operation screen displayed on the terminal registered as a slave terminal in the process of a registration operation. It is a figure which shows another example of the operation which registers a terminal participating in an electronic conference system as a subset. It is a figure which shows another example of the operation which registers a terminal participating in an electronic conference system as a subset. It is a figure which shows an example of the operation screen displayed on the terminal registered as a slave terminal in the process of a registration operation. It is a figure which shows another example of the operation which registers a terminal participating in an electronic conference system as a subset. It is a figure which shows another example of the operation which registers a terminal participating in an electronic conference system as a subset. It is a figure which shows an example of the confirmation screen displayed on the slave terminal registered as a subset. It is a figure explaining an example of the transmission of an instruction between the terminals participating in an electronic conference system. It is a figure explaining the use example of two secondary terminals constituting a subset. It is a figure explaining another use example of two secondary terminals constituting a subset. It is a figure explaining another use example of two secondary terminals constituting a subset. It is a figure explaining the operation of the 2nd sub-terminal when the main terminal and the 1st sub-terminal give an instruction to the 2nd sub-terminal. It is a figure explaining the example of the transmission of the instruction when the instruction from the main terminal to the second slave terminal and the instruction from the first slave terminal to the second slave terminal conflict with each other. It is a figure explaining the specific example in the case where the instruction to the 2nd slave terminal from a main terminal and the instruction to a 2nd slave terminal from a 1st slave terminal conflict with each other. It is a figure explaining another specific example in the case where the instruction to the 2nd slave terminal from a main terminal and the instruction to a 2nd slave terminal from a 1st slave terminal conflict with each other. It is a figure explaining the example of another transmission of the instruction when the instruction to the 2nd slave terminal from a main terminal and the instruction to a 2nd slave terminal from a 1st slave terminal conflict with each other. It is a figure explaining the operation of deregistering a slave terminal in a subset. It is a figure explaining the operation when the 2nd slave terminal leaves a subset to which the own terminal belongs. It is a figure explaining the communication of the electronic conference system by the multi-hop method.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings.

<Embodiment 1>
In the following, an electronic conference system will be described as an example of an information processing system realized through communication between a plurality of information terminals on a network system.
The electronic conference system here assumes a case where information terminals connected to a network system are used to distribute materials and exchange opinions. Electronic conferencing systems also include so-called video conferencing systems and so-called web conferencing systems.
In addition, other examples of information processing systems include briefing sessions, presentations, debriefing sessions, parliaments, classes, etc. using network systems.

<System configuration>
FIG. 1 is a diagram illustrating an example of an information terminal constituting a network system.
In FIG. 1, one server device 11 and ten terminals 12 are drawn.
The server device 11 is a computer that centrally manages the provision of information and services through the execution of a program, and the terminal 12 is a computer operated by a user. The terminal 12 here functions as a client terminal for the server device 11.

In the example of FIG. 1, the case where the terminal 12 is a tablet-type computer is shown, but it may be a smartphone, a notebook-type computer, or the like. Further, it is not necessary that all the terminals 12 are computers of the same type, and a tablet-type computer, a smartphone, and a notebook-type computer may coexist.
These computers are connected through a network (not shown). The connection to the network may be wired or wireless.
However, at the stage of FIG. 1, neither terminal 12 is logged in to the electronic conference service provided by the server device 11.

FIG. 2 is a diagram illustrating an example of an electronic conference system 10 constructed on a network system.
In the example of FIG. 2, 7 out of 10 terminals 12 constitute the electronic conferencing system 10. One of the seven terminals 12 is used as the main terminal M, and the remaining six are used as the slave terminals S1 to S6.

In the present embodiment, the terminal 12 operated by the user who is the presenter is referred to as a main terminal M, and the terminals 12 operated by the user who is a participant are referred to as sub-terminals S1 to S6. Hereinafter, the slave terminals S1 to S6 are collectively referred to as “sub-terminal S”. The presenter is an example of a user who operates the main terminal M, and may be a moderator, a chairman, an administrator, or the like.

The content of the operation received by the main terminal M is notified to the sub-terminals S1 to S6 without delay through the server device 11. By this mechanism, images synchronized with the main terminal M are displayed on the slave terminals S1 to S6. The operations accepted by the main terminal M include, for example, specifying the material, editing the material, changing the page to be displayed, moving the pointer on the screen, and the like.
In the electronic conference system 10, the number of terminals 12 operating as the main terminal M is one at each time point.
However, the terminal 12 used as the main terminal M does not have to be fixed. That is, it is also possible to operate the terminal 12 operating as the sub-terminal S as the main terminal M at another time point and the terminal 12 operating as the main terminal M as the sub-terminal S at another time point. ..
The server device 11 collects and stores various information (for example, instructions, comments, terminal status, etc.) from materials used in the electronic conference and individual terminals 12 participating in the electronic conference system 10, and stores the terminal 12 Provide various services to.

FIG. 3 is a diagram illustrating a configuration example of the electronic conference system 10 used in the present embodiment.
In the electronic conference system 10 shown in FIG. 3, the six sub-terminals S1 to S6 constituting the electronic conference system 10 are classified into three subsets SUBG_1 to SUBG_3, two each. Hereinafter, the subsets SUBG_1 to SUBG_3 are collectively referred to as a subset SUBG.
In the example of FIG. 3, the slave terminals S1 and S2 form a subset SUBG_1, the slave terminals S3 and S4 form a subset SUBG_1, and the slave terminals S5 and S6 form a subset SUBG_3.
In FIG. 3, each of the subsets SUBG_1 to SUBG_3 is composed of two sub-terminals S, but the number of sub-terminals S constituting the subset SUBG is not limited to two, and even one is three or more. But it doesn't matter. Further, the number of slave terminals S constituting the subset SUBG_1 and the number of slave terminals S constituting the subset SUBG_1 may be different.

In the case of the present embodiment, one user targets a plurality of slave terminals S constituting one subset SUBG. The operation includes not only browsing information but also inputting information.
The role of the sub-terminal S in the subset SUBG is also divided into the main terminal and the sub-terminal.
In the present embodiment, the slave terminal S that functions as the main terminal in the subset SUBG is referred to as the first slave terminal GM, and the slave terminal S that functions as the slave terminal in the subset SUBG is referred to as the second slave terminal GS. Call.
For example, in the subset SUBG_1, the slave terminal S1 functions as the first slave terminal GM, and the slave terminal S2 functions as the second slave terminal GS. Further, in the subset SUBG_2, the slave terminal S3 functions as the first slave terminal GM, and the slave terminal S4 functions as the second slave terminal GS. In the subset SUBG_3, the slave terminal S5 functions as the first slave terminal GM, and the slave terminal S6 functions as the second slave terminal GS.

Here, there is no difference in that both the first slave terminal GM and the second slave terminal GS are slave terminals S constituting the electronic conference system 10. Therefore, the instruction from the main terminal M can be notified to both the first sub-terminal GM and the second sub-terminal GS through the server device 11.
However, in the state of being registered as a subset SUBG, in principle, the first slave terminal GM operates by receiving an instruction from the main terminal M, and the second slave terminal GS operates by receiving an instruction from the first slave terminal GM. The instructions and actions that are notified to accept and operate are controlled.

FIG. 4 is a diagram illustrating the relationship between the main terminal M, the first sub-terminal GM, and the screen displayed on the display unit of the second sub-terminal GS. In the case of FIG. 4, the subset SUBG_1 is composed of the first slave terminal GM and the second slave terminal GS.
As shown in FIG. 4, the first sub-terminal GM preferentially receives an instruction from the main terminal M and operates. The screen of the first secondary terminal GM is in a relationship of following the screen of the main terminal M. In other words, the screen of the first secondary terminal GM is linked to the screen of the main terminal M.

The screen of the first secondary terminal GM is not always the same as the screen of the main terminal M because it may be linked.
For example, when the first page of the material is displayed as the screen of the main terminal M, the second page of the material may be displayed as the screen of the first secondary terminal GM.
Further, for example, when the first page of the material is displayed as the screen of the main terminal M, the comment, the attached document (for example, memo), and the link related to the first page of the material are displayed as the screen of the first secondary terminal GM. Information, annotations, etc. may be displayed.
In the example of FIG. 4, the same screen is displayed on the first sub-terminal GM and the main terminal M.
That is, the screen of the first secondary terminal GM is synchronized with the screen of the main terminal M.

In the case of FIG. 4, on the screen of the first slave terminal GM, an operator 21 for operating the screen of the first slave terminal GM and an operator 22 for operating the screen of the second slave terminal GS Is displayed. That is, two controls 21 and 22 are displayed on one screen.
Through the operations of the operators 21 and 22, the user of the first slave terminal GM can operate not only the first slave terminal GM but also the second slave terminal GS. Therefore, the user's operability is improved as compared with the case where a plurality of independently operating sub-terminals S are individually operated.

In the example of FIG. 4, the controls 21 and 22 are displayed on the screen 1, but the controls 21 and 22 may be displayed in a partial area different from the display area of the screen 1. Further, the controls 21 and 22 may be displayed on the screen when a specific operation by the user is detected.
Here, the controls 21 and 22 are used for selecting an image to be displayed, switching pages, designating a pointer position, inputting text, and the like.

On the other hand, the second slave terminal GS preferentially receives an instruction from the first slave terminal GM and operates. Therefore, in principle, the screen of the second slave terminal GS follows the screen of the first slave terminal GM. In other words, the screen of the second slave terminal GS is linked to the screen of the first slave terminal GM.
The screen of the second slave terminal GS does not have to be the same as the screen of the first slave terminal GM because it may be linked.
For example, when the first page of the material is displayed as the screen of the first slave terminal GM, the second page of the material may be displayed as the screen of the second slave terminal GS.
Further, for example, the screen of the main terminal M or a part of the screen of the first sub-terminal GM may be displayed on the second sub-terminal GS at a magnification different from that of each screen.
In the example of FIG. 4, the screen 1 is displayed on the first slave terminal GM, while the screen 2 is displayed on the second slave terminal GS. That is, different screens are displayed on the first slave terminal GM and the second slave terminal GS. Here, the term "different" includes not only the case where the material to be displayed is different, but also the case where a part of the material is enlarged or reduced.

FIG. 5 is a diagram illustrating an example in which the subset SUBG_1 is composed of three slave terminals S. In this case, the number of second secondary terminals GS is two. In FIG. 5, one of the two slave terminals GS is distinguished from the second slave terminal GS1 and the other from the second slave terminal GS2.
FIG. 5 shows an example in which different screens (screens 1, 2, and 3) are displayed on the first slave terminal GM and the two second slave terminals GS1 and GS2.
Further, on the screen of the first slave terminal GM in FIG. 5, an operator 21 for operating the screen of the first slave terminal GM, an operator 22A for operating the second slave terminal GS1, and a second operation device 22A are displayed. The operator 22B for operating the slave terminal GS2 and the operator 23 common to the second slave terminals GS1 and GS2 are displayed. That is, four controls 21, 22A, 22B, and 23 are displayed on one screen.
Through the operations of the operators 21, 22A, 22B, and 23, the user of the first slave terminal GM can operate the three slave terminals S constituting the subset SUBG_1.

<Hardware configuration of information terminal>
FIG. 6 is a diagram showing a hardware configuration example of the server device 11 according to the present embodiment. As shown in FIG. 6, the server device 11 includes a CPU 31 as an arithmetic means, a ROM (Read Only Memory) 32 for storing basic software (Operating System), and a RAM (Random Access Memory) used as a program execution area. ) 33, a hard disk device (HDD) 34 for storing materials, a communication interface (IF) 35 used for communication with a network system, an input device 36 for accepting operations by a user, a user interface, and the like. It has a display device 37 and.
The hardware configuration shown in FIG. 6 can also be regarded as the hardware configuration of the terminal 12. However, in the case of the terminal 12, a semiconductor storage device having a large storage capacity may be used instead of the hard disk device 34.

<Functional configuration of electronic conference system>
FIG. 7 is a block diagram showing a functional configuration example of an information terminal constituting the electronic conference system 10 according to the present embodiment.
In FIG. 7, among the functional configurations of the electronic conference system 10, the server device 11, the main terminal M, the first sub-terminal GM constituting the subset SUBG_1, and the second sub-terminal GS constituting the subset SUBG_1 Represents the part of. The functional configuration of the subsets SUBG_1 and 3 is common to the subset SUBG_1.

First, a functional configuration example of the server device 11 will be described. The functional configuration of the server device 11 is realized through the execution of a program by the CPU 31 (see FIG. 6). FIG. 7 shows a transmission unit 41, a reception unit 42, a material storage unit 43, a transmission management unit 44, and a terminal registration unit 45 as typical functions of the server device 11.

The transmission unit 41 is used to transmit materials and information to individual terminals (for example, a main terminal M, a first slave terminal GM, and a second slave terminal GS).
For example, when a material is requested from the main terminal M, the transmission unit 41 transmits the requested material to the main terminal M. The material may be transmitted in file units or in designated parts (for example, specific pages). The same applies when there is a request from the first slave terminal GM, when a specific material is requested from the second slave terminal GS, or when specific information is requested.
The materials here are not only the individual materials used for the presentation, but also the information such as photographs, figures, tables, and texts contained in each material, the attached materials associated with each material, and the electronic conference system. Various information collected from the terminals 12 participating in 10 is also included.

Further, when a specific material is displayed on the screen of the main terminal M, the transmission unit 41 transmits the specific material displayed on the screen of the main terminal M to the sub-terminal S.
Further, when an instruction or the like that changes the screen of the main terminal M is detected, the transmission unit 41 transmits the detected instruction or the like to the sub-terminal S.
Further, when there is a change in the information indicating the state of the terminal collected from the main terminal M or the sub-terminal S, the transmission unit 41 transmits the corresponding information to the main terminal M or the sub-terminal S. The information indicating the state of the terminal includes terminal information for identifying an individual terminal, state information indicating the state of each terminal, operation information indicating an operation in each terminal, and the like. The operation information includes the coordinates of the pointer on the screen, the change of the display position, the specification of the magnification, the input of the comment, and the like.

The receiving unit 42 is used for receiving instructions and information from individual terminals (for example, a main terminal M, a first sub-terminal GM, and a second sub-terminal GS). The instructions and information here include, for example, information for specifying materials displayed on the main terminal M, operation information of individual terminals, terminal information of individual terminals, state information of individual terminals, and the like.
The material storage unit 43 provides a function of reading and writing materials to and from the hard disk device (HDD) 34.
The transmission management unit 44 provides a function of managing the transmission of materials and the transmission of information to individual terminals. The transmission here also includes the transfer of instructions and information. The details of the function of the transmission management unit 44 will be described later.
The terminal registration unit 45 provides a function of managing the registration of individual terminals participating in the electronic conference system 10. The details of the function of the terminal registration unit 45 will be described later.

Next, a functional configuration example of the main terminal M will be described. The functional configuration of the main terminal M is also realized through the execution of a program by the CPU 31 (see FIG. 6). FIG. 7 shows a transmission unit 51, a reception unit 52, an operation reception unit 53, and a display control unit 54 as typical functions of the main terminal M.
The transmission unit 51 is used not only for transmitting information (identification information) that identifies materials used in a conference, but also for transmitting information that identifies the content of an operation, information that identifies a terminal, information that indicates a state, and the like. To. The transmission unit 51 is also used to transmit an instruction to the slave terminal S.
The receiving unit 52 receives materials and information from the server device 11.
The operation receiving unit 53 is used to receive a user's operation on the screen.
The display control unit 54 controls the contents of the screen displayed on the display device 37 (see FIG. 6).
The above-mentioned functional configuration of the main terminal M is also common to the functional configuration of the slave terminal S.

<Operation of electronic conference system>
Hereinafter, the operations executed by the electronic conference system 10 will be described in chronological order.
The server device 11, the main terminal M, the first sub-terminal GM, and the second sub-terminal GS realize communication, screen display, and the like, which will be described later, through the execution of the program.
Here, the programs executed by the main terminal M, the first sub-terminal GM, and the second sub-terminal GS may be pre-installed in each terminal 12, and each terminal 12 may have a management screen of the electronic conferencing system 10. It may be provided in the form of a Java script or the like at the stage of logging in to.

In either case, each terminal 12 knows the information necessary for executing each process and executes the necessary process. Here, the information required for executing each process is, for example, whether the local terminal belongs to the main terminal M or the sub-terminal S, which subset SUBG belongs to, which subset SUBG belongs to, or the subset SUBG. What is the role within?
In the description described later, another terminal 12 may execute the process executed by the specific terminal 12. For example, a program executed by the first slave terminal GM may determine the process related to the determination of the screen displayed on the second slave terminal GS.
Further, the program that realizes each function described later may be executed individually on each terminal 12, but a method is adopted in which the program is executed on the server device 11 and the processing result is provided to each terminal 12 through the web screen. You may.

<Registration operation>
First, the registration operation of the subset SUBG will be described.

<Example of registration operation 1>
FIG. 8 is a diagram showing an example of an operation of registering a terminal 12 participating in the electronic conference system 10 as a subset SUBG. However, the terminal 12 shown in FIG. 8 shows the role after the registration is completed in parentheses.
First, a terminal 12 logs in to the server device 11 (step 101). More precisely, the terminal 12 logs in to the management screen (Uniform Resource Locator: URL) of the electronic conference system 10. In the case of the present embodiment, the server device 11 registers the terminal 12 that first logs in to the electronic conference system 10 as the main terminal M (step 102). This registration operation is executed by the terminal registration unit 45 (see FIG. 7).

Next, another terminal 12 logs in to the server device 11 (steps 103 and 105). In the case of the present embodiment, the server device 11 registers the second and subsequent terminals 12 logged in to the electronic conference system 10 as the slave terminals S (steps 104 and 106). This registration operation is also executed by the terminal registration unit 45 (see FIG. 7).
The state at this stage is shown in FIG.

Subsequently, one terminal 12 registered as the slave terminal S notifies the server device 11 as a terminal for registering its own terminal in the subset SUBG (step 107).
Upon receiving the notification, the server device 11 generates a subset SUBG and registers the terminal 12 as a component thereof (step 108). In the example of FIG. 8, since it is the first registration, it is named Subset 1 (SUBG_1). Subsets 2 (SUBG_2), subsets 3 (SUBG_3), ... Are attached to the second and subsequent subsets. Of course, the naming of subsets is just one example.

After that, the server device 11 inquires about the role of the terminal 12 registered in the subset 1 (step 109).
Here, the server device 11 is notified that it operates as the main terminal in the subset 1 (step 110).
Upon receiving this notification, the server device 11 registers the corresponding terminal 12 in the first sub-terminal GM which means the main terminal in the subset 1 (SUBG_1) (step 111).

Subsequently, the user who has registered the first terminal 12 in the subset SUBG operates the second sub-terminal S to notify the server device 11 of the participation in the registered subset SUBG (step). 112). This notification means requesting registration of the own terminal as the second secondary terminal GS. It is necessary to operate each terminal 12 until the registration in the subset SUBG and the role in the subset are registered.
It is also possible for the second slave terminal S to instruct the registration of a new subset SUBG.
Here, since the participation is in the registered subset SUBG_1, the server device 11 registers the corresponding terminal 12 as a component of the subset SUBG1 (step 113), and the server device 11 is a subset of the newly joined terminal 12. Inquire about the role in SUBG_1 (step 114).

In this embodiment, the server device 11 is notified that it operates as a slave terminal in the subset SUBG_1 (step 115).
Upon receiving this notification, the server device 11 registers the corresponding terminal 12 in the second slave terminal GS, which means the slave terminal in the subset 1 (SUBG_1) (step 116).
When this registration is completed, one or more second sub-terminals GS registered in the same subset SUBG_1 can be operated from the side of the first sub-terminal GM.
The above-mentioned registration is also executed by the terminal registration unit 45 (see FIG. 7).
In the present embodiment, the subsets SUBG2 and SUBG3 are also registered in order. The state at this stage is shown in FIG.

FIG. 9 is a diagram showing an example of an operation screen displayed on the terminal 12 (see FIG. 8) registered as the slave terminal S in the process of the registration operation.
First, in step 107 (see FIG. 8) and step 112 (see FIG. 8), the operation screen 61 is displayed on the display device 37 (see FIG. 6) of the terminal 12 registered as the slave terminal S.
On the operation screen 61, for example, an affirmative button (YES) 62 and a negative button (NO) 63 for response are displayed together with an inquiry asking "Do you want to register in the subset?".

When the affirmative button 62 is operated, the operation screen 64 is displayed on the display device 37 of the terminal 12.
On the operation screen 64, for example, a new button 65 and a selection field 66 of the registered subset are displayed together with an inquiry "Please specify a subset name to participate in".
The new button 65 is a button used when generating a new subset SUBG. In the selection field 66, the check box and the name of the registered subset SUBG are written together. For example, when a confirmation button (OK) (not shown) is clicked after checking the new button 65 or the check box, the instruction to create the subset SUBG or the name of the selected subset SUBG is the server device 11 (see FIG. 8). ) Will be notified.

When the subset SUBG to participate in is specified, the operation screen 67 is displayed on the display device 37 of the terminal 12.
On the operation screen 67, for example, the main terminal button 68 and the sub-terminal button 69 are displayed together with an inquiry "Please specify a role in the subset".
When the confirmation button (OK) (not shown) is clicked after selecting any of the roles on the operation screen 67, the selected role is notified to the server device 11 (see FIG. 8).

<Example 2 of registration operation>
Here, an operation example in which the user's operation is simplified as compared with the above-mentioned registration operation example 1 will be described.
FIG. 10 is a diagram showing another example of the operation of registering the terminal 12 participating in the electronic conference system 10 as a subset SUBG.
In FIG. 10, a reference numeral corresponding to a portion corresponding to that in FIG. 8 is added.
First, when a certain terminal 12 logs in to the server device 11 (step 101), the server device 11 registers the terminal 12 that first logs in to the electronic conference system 10 as the main terminal M (step 102).
Next, when another terminal 12 logs in to the server device 11 (steps 103 and 105), the server device 11 registers the second and subsequent terminals 12 logged in to the electronic conference system 10 as the slave terminal S (step). 104, 106).

Subsequently, one terminal 12 registered as the slave terminal S notifies the server device 11 as a terminal for registering its own terminal in the subset SUBG (step 107).
In the case of the present embodiment, the server device 11 that has received the notification generates a new subset SUBG_1 and registers the terminal 12 as a component thereof (step 108). Next, the server device 11 registers the terminal 12 first registered in the subset SUBG_1 as the first sub-terminal GM meaning the main terminal (step 111).

Subsequently, the user who has registered the first terminal 12 in the subset SUBG operates the second sub-terminal S to notify the server device 11 of the participation in the registered subset SUBG (step). 112).
Here, consider the case of participating in the registered subset SUBG_1. In this case, the server device 11 registers the corresponding terminal 12 as a component of the subset SUBG_1 (step 113), and registers the newly joined terminal 12 in the second slave terminal GS which means the slave terminal. (Step 116).

As described above, in this operation example 2, the server device 11 determines the role in the subset in the order of registration in the subset SUBG. Therefore, the role specification by the user is omitted.
In Example 2, the role in the subset is determined based on the order of registration in the subset SUBG, but the part is based on whether the login to the electronic conference system 10 (see FIG. 2) is first or second. You may determine the role in the set. In this case, if the login time of the terminal 12 that participated in the subset SUBG is earlier than the login time of the other terminals 12 registered in the same subset SUBG, the roles in the subset are switched. become.

<Example 3 of registration operation>
Here, too, an operation example in which the user's operation is simplified as compared with the above-mentioned registration operation example 1 will be described.
FIG. 11 is a diagram showing another example of the operation of registering the terminal 12 participating in the electronic conference system 10 as a subset SUBG.
FIG. 11 is shown with reference numerals corresponding to the portions corresponding to those in FIG.
First, when a certain terminal 12 logs in to the server device 11 (step 101), the server device 11 registers the terminal 12 first logged in to the electronic conference system 10 as the main terminal M (step 102).
Next, when another terminal 12 logs in to the server device 11 (steps 103 and 105), the server device 11 registers the second and subsequent terminals 12 logged in to the electronic conference system 10 as the slave terminal S (step). 104, 106).

In the present embodiment, at this stage, registration as a subset and registration of roles are started not from the server device 11 but from the terminal 12 registered as the slave terminal S. These operations are executed according to the electronic conference program executed by the CPU 31 (see FIG. 6) constituting the terminal 12.
In the present embodiment, it is determined whether or not the own terminal is the slave terminal S in each terminal 12 logged in to the electronic conference system 10 (step 121). In FIG. 11, each of the three terminals 12 is executing the determination process.
Here, the determination as to whether or not the own terminal is the slave terminal S may be executed based on an inquiry from each terminal 12 to the server device 11, or is notified from the server device 11 at the time of login. It may be executed without communication to the server device 11 based on the existing information.

When the local terminal is the slave terminal S (two in the example of FIG. 11), the terminal 12 displays the registration screen of the terminal in the subset SUBG, so that the user operates one of the terminals 12. Notify the server device 11 of a plurality of terminals 12 to be registered as a subset (step 122). The notification in step 122 is an example of the first function.
In the example of FIG. 11, the terminal 12 to which the login to the electronic conference system 10 is first is used for the operation.
After that, the server device 11 generates the subset SUBG_1 or registers the plurality of terminals 12 notified to the existing subset SUBG_1 (step 123). This step 123 is also an example of the first function.
Upon accepting the registration of the terminal 12 in the subset SUBG_1, the server device 11 queries the terminal 12 that used the role in the subset SUBG_1 to register in the subset SUBG_1 (step 124).

The terminal 12 that has received the inquiry notifies the server device 11 of the terminal 12 that operates as the main terminal and the terminal 12 that operates as the sub-terminal in the subset (step 125). This step 125 is an example of the second function.
In this example, one terminal 12 is used, and the terminal 12 operated by the user as the first slave terminal GM and the terminal 12 operated as the second slave terminal GS are registered.
Upon receiving this notification, the server device 11 registers the role in the subset according to the notification (step 126). This step 126 is also an example of the second function.

FIG. 12 is a diagram showing an example of an operation screen displayed on the terminal 12 (see FIG. 11) registered as the slave terminal S in the process of the registration operation. In FIG. 12, reference numerals corresponding to the portions corresponding to those in FIG. 9 are added.
First, the operation screen 61 is displayed on the display device 37 (see FIG. 6) of the terminal 12 registered as the slave terminal S.
On the operation screen 61, for example, an affirmative button (YES) 62 and a negative button (NO) 63 for response are displayed together with an inquiry asking "Do you want to register in the subset?".

When the affirmative button 62 is operated, the operation screen 64 is displayed on the display device 37 of the terminal 12.
On the operation screen 64, for example, a new button 65 and a selection field 66 of the registered subset are displayed together with an inquiry "Please specify a subset name to participate in". The new button 65 is a button used when generating a new subset SUBG.
When the subset SUBG to participate in is specified, the operation screen 70 is displayed on the display device 37 of the terminal 12.
On the operation screen 70, for example, an inquiry "Please specify a terminal to be registered in the subset" and a terminal name 71 as a candidate are displayed. In the case of FIG. 12, a check box is prepared for each terminal name 71, and when a confirmation button (OK) (not shown) is operated, the checked terminal 12 is registered in the subset SUBG.

The operation screen 72 is displayed when the server device 11 requests the designation of the role. On the operation screen 72, for example, along with an inquiry "Please specify a role in the subset", a designation field 73 of the main terminal GM and a designation field 74 of the slave terminal GS are displayed. Only one terminal 12 can be registered as the main terminal M (first sub-terminal GM) in the subset. On the other hand, there are a plurality of terminals 12 that can be registered as the slave terminal S (second slave terminal GS) in the subset.
When a confirmation button (OK) (not shown) is clicked after selecting a role on the operation screen 72, the selected role is notified to the server device 11 (see FIG. 11).

As described above, in the case of Example 3 of this registration operation, one of the plurality of sub-terminals S constituting the subset SUBG is used to register and play the role of the terminal 12 constituting the subset SUBG. Registration can be realized.
Therefore, the number of user operations can be reduced as compared with Example 1 of the registration operation.

<Example 4 of registration operation>
In Example 3 of the above-mentioned registration operation, the slave terminal S, which is registered in the electronic conference system 10 and whose subset SUBG is undecided, is presented to the user as a candidate for a component of the subset SUBG. It is unlikely that one user will use the terminal 12 operated by another user.
Therefore, in the present embodiment, a case where a function for narrowing down candidates to be registered as a subset SUBG is installed will be described.

FIG. 13 is a diagram showing another example of the operation of registering the terminal 12 participating in the electronic conference system 10 as a subset SUBG.
In FIG. 13, a reference numeral corresponding to a portion corresponding to that in FIG. 11 is added.
First, when a certain terminal 12 logs in to the server device 11 (step 101), the server device 11 registers the terminal 12 that first logs in to the electronic conference system 10 as the main terminal M (step 102).
Next, when another terminal 12 logs in to the server device 11 (steps 103 and 105), the server device 11 registers the second and subsequent terminals 12 logged in to the electronic conference system 10 as the slave terminal S (step). 104, 106).

In the present embodiment, at this stage, an operation for narrowing down the number of sub-terminals S displayed as candidates to the terminal 12 having the same user name as the own terminal is executed. These operations are executed according to the electronic conference program executed by the CPU 31 (see FIG. 6) constituting the terminal 12.
Also in this embodiment, as in Example 3 of the registration operation, it is determined whether or not the own terminal is the slave terminal S in each terminal 12 logged in to the electronic conference system 10 (step 121). In FIG. 13, each of the three terminals 12 is executing the determination process.

When the local terminal S is a secondary terminal S (two in the example of FIG. 13), the corresponding terminal 12 inquires the server device 11 of the secondary terminal S logged in with the same user name as the local terminal (step 131). In the example of FIG. 13, the inquiry is executed by one of the two slave terminals S, but in reality, the inquiry is issued from each of the two slave terminals S.
The server device 11 searches for another sub-terminal S logged in with the same user name as the inquiry source terminal 12, and notifies the information about the corresponding sub-terminal S (step 132).
Upon receiving the notification, the slave terminal S displays the registration screen of the terminal in the subset SUBG.

In the example of FIG. 13, the terminal 12 having the slow login to the electronic conference system 10 is used for the operation.
As described above, in the case of this example 4, the number of terminals 12 displayed as candidates is narrowed down to the slave terminals S having the same user name at the time of login. Therefore, the user does not have to specify the wrong terminal 12.

After that, the terminal 12 notifies the server device 11 of the plurality of terminals 12 managed as the subset SUBG (step 122), and the server device 11 registers the plurality of terminals 12 notified to the subset SUBG_1. (Step 123).
After registering in the subset SUBG_1, the server device 11 queries the terminal 12 for a role in the subset (step 124).

The terminal 12 that has received the inquiry notifies the server device 11 of the terminal 12 that operates as the main terminal and the terminal 12 that operates as the sub-terminal in the subset (step 125). The user registers the terminal 12 that operates as the first slave terminal GM and the terminal 12 that operates as the second slave terminal GS.
Upon receiving this notification, the server device 11 registers the role in the subset according to the notification (step 126).

<Example 5 of registration operation>
In the above-mentioned example of the registration operation, the user specifies the sub-terminal S and the role to be registered as the subset SUBG, but in this operation example, the case where the server device 11 executes these registrations will be described.

FIG. 14 is a diagram showing another example of the operation of registering the terminal 12 participating in the electronic conference system 10 as a subset SUBG.
14 is shown with a reference numeral corresponding to the portion corresponding to FIG. 11.
First, when a certain terminal 12 logs in to the server device 11 (step 101), the server device 11 registers the terminal 12 that first logs in to the electronic conference system 10 as the main terminal M (step 102).
Next, when another terminal 12 logs in to the server device 11 (steps 103 and 105), the server device 11 registers the second and subsequent terminals 12 logged in to the electronic conference system 10 as the slave terminal S (step). 104, 106).

In the present embodiment, at this stage, the server device 11 executes the registration of the subset SUBG (step 141). Specifically, the server device 11 registers the sub-terminal S having the same user name when logging in to the electronic conference system 10 as a registration element of the subset SUBG.
Next, the server device 11 registers the slave terminal S of which the login is first (first) among the slave terminals constituting the subset SUBG in the main terminal (first slave terminal GM), and the login is later (2). The sub-terminal S (second and subsequent) is registered in the sub-terminal (second sub-terminal GS) (step 142).
In the case of this operation example, no user operation is required to register the subset SUBG or the role.

However, in the case of this operation example, the user cannot know the current registration status.
Therefore, the server device 11 notifies the sub-terminals S constituting the subset SUBG of the registration contents, and requests confirmation of the roles of the terminal 12 registered as the subset SUBG_1 and each terminal in the subset (step). 143).
FIG. 15 is a diagram showing an example of a confirmation screen displayed on the slave terminal S registered as a subset SUBG.
On the confirmation screen 81 of the first sub-terminal GM, for example, an inquiry "Registered as a main terminal in a subset. Do you want to change the registration?" The negative button (NO) 83 is displayed.

On the other hand, on the confirmation screen 84 of the second slave terminal GS, for example, along with an inquiry "Registered as a slave terminal in the subset. Do you want to change the registration?", An affirmative button (YES) for response is displayed. 82 and the negative button (NO) 83 are displayed.
The user who sees these confirmation screens 81 and 84 can see that the two terminals 12 in his / her hand operate as a subset SUBG, and which terminal 12 operates as the first slave terminal GM. It is possible to know whether the terminal 12 operates as the second slave terminal GS.

When it is necessary to change the registered contents, the user selects the affirmative button 82 and then clicks the confirm button (OK). If it is not necessary to change the registered contents, the user selects the negative button 83 and then clicks the confirm button (OK).
When the affirmative button 82 is selected, the change screen 85 is displayed.
If the change in the registration content is the registration of the subset itself, the user checks the check box 86 for cancellation. On the other hand, when the change of the registered contents is a role in the subset, the user checks the check box 87 for changing the role.
These checks may be performed on any terminal 12 registered as a subset.

In the case of this example 5, it is possible to omit the registration of subsets and roles by the user. Further, since the confirmation screens 81 and 84 are displayed on the display device 37 (see FIG. 6) of the slave terminal S registered as a subset, registration of the subset not intended by the user is avoided, and the user does not intend. You can modify the role registration.

<Operation during the meeting>
Subsequently, an example of the operation during the meeting started after the registration of the subset SUBG will be described.

<Example of operation during a meeting 1>
FIG. 16 is a diagram illustrating an example of transmission of instructions between terminals 12 participating in the electronic conference system 10.
The operation received by the terminal 12 functioning as the main terminal M of the electronic conference system 10 is transmitted to the server device 11 as an instruction (step 201).
The server device 11 interprets the content of the instruction received from the main terminal M, and executes processing, notification, transfer, or the like according to the instruction (step 202).
The operation of the server device 11 is controlled by the transmission management unit 44 (see FIG. 7). The transmission management unit 44 cooperates with the terminal registration unit 45 (see FIG. 7) to play a role in the electronic conference system 10 of the terminal 12 which is a source of the received data and a destination of the data, or in a subset. Recognize the role.

For example, when the content of the instruction is the distribution of materials, the transmission management unit 44 reads the designated materials from the material storage unit 43 (see FIG. 7) and transmits them to the first slave terminal GM and the second slave terminal GS. .. In FIG. 16, it is indicated by a broken line arrow L1 and a solid line arrow L2.
Further, for example, when the content of the instruction is page turning of the material, the transmission management unit 44 transmits the instruction received through the receiving unit 42 (see FIG. 7) to the first slave terminal GM and the second slave terminal GS.
Since both the first slave terminal GM and the second slave terminal GS are terminals 12 on the network, direct notification of information is possible.

By this notification, the screens of the first sub-terminal GM and the second sub-terminal GS constituting the subset SUBG can be linked to the screen of the main terminal M or linked to the operation of the main terminal M.
However, as shown in FIG. 16, the server device 11 may limit the data transmission destination to the first slave terminal GM in the subset. In this case, the first slave terminal GM may adopt a mechanism for transferring the instruction received via the server device 11 to the second slave terminal GS (steps 203 and 204).

The second sub-terminal GS constituting the subset SUBG is an instruction of the first sub-terminal GM constituting the same subset SUBG except for some of the instructions from the main terminal M having high priority. Priority is given to the contents of.
Therefore, even when an instruction from the main terminal M is received as shown by the arrow L1 indicated by the broken line, the instructed operation may not be executed depending on the content of the instruction.

Further, the first slave terminal GM can also instruct the server device 11 to participate in the electronic conference system 10 of the own terminal, cancel the participation, change the role, request the information to be displayed, and the like (step 205). In this case, the server device 11 executes the process according to the instruction and notifies the first slave terminal GM of the process result (step 206). For example, in the first secondary terminal GM, comments, annexes, and the like related to the image displayed on the main terminal M can be requested.

Further, in the case of the present embodiment, the instruction to the second slave terminal GS generated by the first slave terminal GM is transferred to the second slave terminal GS via the server device 11 (step 211). , 212).
As described above, in the present embodiment, the second sub-terminal GS constituting the same subset SUBG can be operated by the first sub-terminal GM. Incidentally, for the operation of the second slave terminal GS, the operator 22 (see FIG. 4) and the operator 22A (see FIG. 5) displayed on the screen of the first slave terminal GM are used.
Further, the second secondary terminal GS can also instruct the server device 11 to participate in the electronic conference system 10 of the own terminal, cancel the participation, change the role, and the like (steps 221, 222).

Here, an example of using a plurality of slave terminals S (that is, a first slave terminal GM and a second slave terminal GS) constituting the subset SUBG will be described with reference to FIGS. 17 to 19.
The first slave terminal GM and the second slave terminal GS realize the display form shown in FIGS. 17 to 19 through the execution of the program. The screen displayed on the second slave terminal GS is not limited to the case where the program executed on the first slave terminal GM is determined, and the screen displayed on the second slave terminal GS is not limited to the case where the program executed on the second slave terminal GS is determined. good. Further, the program to be executed by the server device 11 may be determined based on the setting from the first slave terminal GM.

FIG. 17 is a diagram illustrating a usage example of two slave terminals S constituting the subset SUBG_1.
In the case of FIG. 17, the same screen 92 as the screen 91 of the main terminal M is displayed on the first secondary terminal GM . With this display, the user who operates the first secondary terminal GM can check the screen of the main terminal M operated by the presenter at hand.
In the case of FIG. 17, the images of the document including "Photo 1" and "FIG. 1" are displayed on the screens 91 and 92.

The user who operates the first secondary terminal GM can add a marker to the image on the screen 92, add a sticky note or a memo by operating the operator 21.
Further, the user who operates the first secondary terminal GM can input a question or a comment shared with other participants (including the presenter) by operating the operator 21 and the operator 22.
Further, the user who operates the first slave terminal GM can control the screen 93 displayed on the second slave terminal GS by operating the operator 22.

In the example of FIG. 17, as the screen 93 of the second secondary terminal GS, “Photo 1” corresponding to a part of the image of the main terminal M is displayed in an enlarged state. The function of displaying an image corresponding to a part of the image of the main terminal M on the screen 93 here is an example of the third function.
In this case, the user displays the screen 92 synchronized with the screen 91 of the main terminal M on one of the secondary terminals S (first secondary terminal GM), and the other secondary terminal (second secondary terminal GM). On the secondary terminal GS), a part of the screen 91 can be confirmed at a magnification specified by the user.

At this time, the user can instruct the range and the enlargement ratio of the image to be displayed on the second slave terminal GS on the first slave terminal GM side. That is, after the registration of the subset SUBG, the user does not need to operate the two sub-terminals S individually, and controls the content displayed on the second sub-terminal GS through the operation of the first sub-terminal GM. Can be done.

By the way, in the example of FIG. 17, a part of the image of the main terminal M is enlarged and displayed on the screen 93 of the second secondary terminal GS, but it may be reduced and displayed. In other words, a part of the image of the main terminal M can be displayed on the second secondary terminal GS at a magnification different from that of the main terminal M.
Further, in FIG. 17, although the photograph 1 which is a part of the image is enlarged, the figure or the table may be enlarged and displayed. In figures and tables, the size of the character font is often smaller than that of the text, so it is easier to check the contents by enlarging. Even in this case, the content of the announcement can be confirmed on the screen 92 of the first secondary terminal GM.
It should be noted that the enlarged display is not limited to photographs, figures and tables, but may be text texts of presentation materials.

FIG. 18 is a diagram illustrating another usage example of the two slave terminals S constituting the subset SUBG_1.
In the case of FIG. 18, a part of the image of the main terminal M is displayed on both of the two sub-terminals S (that is, the first sub-terminal GM and the second sub-terminal GS) constituting the subset SUBG_1. Specifically, "FIG. 1" is displayed on the screen 94 of the first slave terminal GM, and "Photo 1" is displayed on the screen 93 of the second slave terminal GS.
In other words, on the first slave terminal GM and the second slave terminal GS, different parts of the screen 91 of the main terminal M are displayed at a different magnification from the screen 91 of the main terminal M. As described above, the function of displaying different parts of the screen 91 of the main terminal M between the first sub-terminal GM and the second sub-terminal GS is also an example of the third function.

FIG. 19 is a diagram illustrating another usage example of the two slave terminals S constituting the subset SUBG_1.
In the case of FIG. 19, both of the two slave terminals S (that is, the first slave terminal GM and the second slave terminal GS) constituting the subset SUBG_1 display a part of the image of the main terminal M at different magnifications. ing. Specifically, "FIG. 1" is displayed on the screen 94 of the first sub-terminal GM at a magnification of 5 times that of the screen 91 of the main terminal M, and "FIG. 1" is displayed on the screen 95 of the second sub-terminal GS. FIG. 1 ”is displayed at a magnification of 10 times with respect to the screen 91 of the main terminal M. This function is an example of the fifth function.
Here, the screen 94 of the first slave terminal GM and the screen 95 of the second slave terminal GS are both premised on "FIG. 1", but in the present embodiment, images having different magnifications are also mutually different. Treat as a different image.
For example, in figures, photographs, tables, etc., it may be desirable to check the details while checking the relationship with the whole or the surroundings, but as shown in FIG. 19, a part of the image of the main terminal M is divided into two sub-terminals at different magnifications. If it can be displayed on the S, in addition to improving the operability of the user, the degree of understanding of the user can also be improved.

<Example 2 of operation during a meeting>
FIG. 20 is a diagram illustrating the operation of the second sub-terminal GS when instructed by the main terminal M or the first sub-terminal GM with respect to the second sub-terminal GS.
It should be noted that FIG. 20 is shown with a reference numeral corresponding to the portion corresponding to FIG.
In the example of FIG. 20, for example, it is determined whether the content of the operation received from the other terminal 12 by the second secondary terminal GS is reflected in the display of the own terminal (steps 207 and 225), and the determination to reflect is obtained. Only when it is reflected in the display on the own terminal (step 208, 226).

For example, in the case of changing the material displaying the content of the operation received as an instruction from the main terminal M or changing the displayed page, the second secondary terminal GS displays the content of the received operation on the own terminal. Reflect in. This is because there is a high need to link changes in materials and pages to be displayed.
The reflection here includes a case where the display of the second secondary terminal GS is changed as the page displayed on the main terminal M is changed to another page.

Even if the display position is instructed to be changed by the scroll operation, if the notified movement amount does not reach the threshold value, it is possible to decide not to reflect the received operation content on the display of the own terminal. .. This is because if the screen scrolls regardless of the user's intention while the screen of the second secondary terminal GS is being visually recognized, the visibility of the screen is lowered. In such a case, it is desirable to prioritize the intention of the user who controls the second secondary terminal GS over the intention of the presenter.

Further, when the movement of the cursor position in the page where the content of the operation on the main terminal M is displayed is the movement of the cursor position, the image of "Photo 1" is displayed on the second secondary terminal GS. In such cases, the content of the operation on the main terminal M may not be related to the display on the second secondary terminal GS. Such an irrelevant operation is an example of an operation that does not match a predetermined specific operation. In such a case, it is desirable that the content of the operation received from the main terminal M is not reflected in the display of the second secondary terminal GS.
In the example of FIG. 20, a case where the second slave terminal GS receives an instruction from the main terminal M or the first slave terminal GM is described, but this operation is mainly performed by the first slave terminal GM. It can also be applied when an instruction is received from the terminal M or the second secondary terminal GS.

<Example 3 of operation during a meeting>
FIG. 21 describes an example of transmission of an instruction when an instruction from the main terminal M to the second slave terminal GS and an instruction from the first slave terminal GM to the second slave terminal GS conflict with each other. It is a figure.
The conflict here means a case where a plurality of instructions to the common terminal 12 generated by the plurality of terminals 12 are received by the server device 11 within a predetermined time.
In the example of FIG. 21, in the server device 11, the instruction 1 (step 231) from the main terminal M and the instruction 2 (step 232) from the first slave terminal GM conflict with each other. In this case, the server device 11 determines the priority between the two instructions (step 233), and notifies the second slave terminal GS of the instruction having the higher priority (step 234).

For example, while the instruction 1 on the main terminal M is an instruction or page turning of the material, the instruction 2 on the first secondary terminal GM is the display of the current material or the comment of another user related to the current page. In this case, the server device 11 notifies the second sub-terminal GS of the instruction from the main terminal M in order to give priority to following the changed material or page.
On the other hand, the instruction 1 in the main terminal M is the information indicating the coordinates of the cursor in the page, while the instruction 2 in the first secondary terminal GM is the comment of the current material or the comment of another user related to the current page. In the case of display or the like, the server device 11 notifies the second slave terminal GS of the instruction from the first slave terminal GM.
It is assumed that the priority order is registered in advance as an initial setting or by the operation manager of the electronic conference system 10. However, it is preferable that the contents of the priority order can be changed by the administrator after the start of use of the electronic conference system 10.

Further, the server device 11 executes a process according to the received instruction as necessary (step 235). For example, step 235 is executed in the case of an instruction regarding registration of the terminal 12.
However, depending on the content of the instruction, the process of step 235 may be executed before step 234. For example, in the case of changing the material, the process of reading the instructed material before the notification to the second slave terminal GS is executed.

FIG. 22 is a diagram illustrating a specific example in the case where the instruction from the main terminal M to the second slave terminal GS and the instruction from the first slave terminal GM to the second slave terminal GS conflict with each other. ..
In FIG. 22, the main terminal M instructs all the sub-terminals S participating in the electronic conference system 10 to end the conference (step 231), and the first sub-terminal GM with respect to the second sub-terminal GS. Instruction 2 has been generated (step 232). The end of the meeting here is an example of the end of communication.
The instructions of each terminal 12 are aggregated in the server device 11, and the priority is determined (step 233).
The instruction to end the meeting here is an instruction having a higher priority than the other instructions.
Therefore, the server device 11 notifies the first slave terminal GM and the second slave terminal GS of the end of the conference as a high-priority instruction (step 234).

In this case, the terminal registration unit 45 (see FIG. 7) first cancels the registration of the main terminal M (step 236), and then cancels the registration of the subset SUBG (step 237) . When the subset SUBG is canceled, the registration of the role in the subset is also canceled, and each terminal 12 returns to the registration as the slave terminal S.
Further, the terminal registration unit 45 cancels the registration of the slave terminal S (step 238).

FIG. 23 is a diagram illustrating another specific example in the case where the instruction from the main terminal M to the second slave terminal GS and the instruction from the first slave terminal GM to the second slave terminal GS conflict with each other. Is.
In FIG. 23, the main terminal M issues an instruction 1 to all the sub-terminals S participating in the electronic conference system 10 (step 231), and the first sub-terminal GM instructs the server device 11 to log out. (Step 232). Here, the logout of the first slave terminal GM is not a direct instruction to the second slave terminal GS, but since it involves a change of the role in the subset, here, the second slave terminal GS is used. Treat as instructed.

The instructions of each terminal 12 are aggregated in the server device 11, and the priority is determined (step 233).
The instruction to log out from the first slave terminal GM involves a change in the role in the subset, so that the instruction has a higher priority than the other instructions for the second slave terminal GS.
Therefore, the server device 11 notifies the first slave terminal GM and the second slave terminal GS of the logout as a high-priority instruction (step 234).

After that, the terminal registration unit 45 (see FIG. 7) first resets or cancels the subset SUBG (step 239). For example, when two or more second sub-terminals GS exist in the subset SUBG in which the log-out of the first sub-terminal GM has occurred, the server device 11 reconfigures the subset SUBG. On the other hand, when there is one second slave terminal GS existing in the subset SUBG in which the logout of the first slave terminal GM has occurred, the server device 11 cancels, for example, the subset SUBG. In the case of canceling the subset SUBG, the registration of the role in the subset is also canceled.
In the case of reconfiguration of the subset SUBG, the server device 11 executes the change of the role in the subset (step 240).
After that, the server device 11 notifies the second slave terminal GS of the changed registration information (step 241).

<Example 4 of operation during a meeting>
In the case of Example 2 of the above-mentioned operation, the server device 11 determines the priority, but here, a case where the determination of the priority is executed on the second slave terminal GS side will be described.
FIG. 24 shows another example of transmission of an instruction when the instruction from the main terminal M to the second slave terminal GS and the instruction from the first slave terminal GM to the second slave terminal GS conflict with each other. It is a figure explaining.
In the case of FIG. 24, the server device 11 transfers the instruction 1 (step 231) from the main terminal M to the second sub-terminal GS, which is one of the destinations (step 251). Further, the server device 11 transfers the instruction 2 (step 232) from the first slave terminal GM to the second slave terminal GS, which is the destination (step 252).

In the case of this operation example, there is an instruction conflict in the second slave terminal GS. In this case, the second slave terminal GS determines the priority of the two received instructions 1 and 2 (step 253), and determines the instruction to be executed based on the determination result (step 254).
For example, when the instruction of the main terminal M is to change the material or turn pages, the second sub-terminal GS gives priority to the instruction from the main terminal M over the instruction from the first sub-terminal GS. Further, for example, the instruction 1 from the main terminal M is information indicating the coordinates of the cursor in the page, while the instruction 2 in the first secondary terminal GM is a comment of another user related to the current material or the current page. In the case of display or the like, the second slave terminal GS gives priority to the instruction from the first slave terminal GM.

<Cancellation of registration>
Here, the operation associated with the cancellation of registration will be described. In the above-mentioned explanation of the operation during the conference, the cancellation when the main terminal M instructs the end of the conference or the first slave terminal GM in the subset logs out is described, but here, in the subset. The cancellation of the registration regarding the second sub-terminal GS of the above will be described.

<Example 1 of release operation>
FIG. 25 is a diagram illustrating an operation of canceling registration of a slave terminal in a subset.
This operation is executed when the use as the second slave terminal GS is stopped or when the number of units used as the second slave terminal GS is reduced. Unlike the case of the main terminal M and the first slave terminal GM described above, the influence of canceling the registration of the second slave terminal GS does not extend to the terminal 12 other than the terminal 12 to be canceled.

In this case, the terminal 12 functioning as the second slave terminal GS transmits an instruction to cancel the registration of the own terminal as the slave terminal (second slave terminal GS) in the subset to the server device 11 (. Step 261).
Based on the received instruction, the terminal registration unit 45 (see FIG. 7) of the server device 11 cancels the registration as a slave terminal in the subset SUBG_1 to which the notified terminal 12 belongs (step 262).

Even if the registration as the second secondary terminal GS is canceled, the registration state to the subset SUBG_1 continues, and the connection to the electronic conference system 10 also continues. However, in the case of the present embodiment, since the role in the subset is an alternative of the first slave terminal GM and the second slave terminal GS, the role is switched to the first slave terminal GM. In the absence of, the cancellation of registration as the second secondary terminal GS is the same as the withdrawal from the subset.
In the present embodiment, the server device 11 notifies the terminal 12 that has been deregistered as the second slave terminal GS that it is the slave terminal S in the electronic conference system 10 (step 263).

<Example 2 of release operation>
FIG. 26 is a diagram illustrating an operation when the second slave terminal GS leaves the subset SUBG to which the own terminal belongs.
Even if the second slave terminal GS leaves the subset SUBG, the registration of the subset SUBG remains.

In this case, the terminal 12 functioning as the second secondary terminal GS instructs the server device 11 to leave the own terminal from the subset SUBG to which the own terminal belongs (step 271).
The terminal registration unit 45 (see FIG. 7) of the server device 11 cancels the registration of the second sub-terminal GS, which is the notification source, from the subset SUBG_1 based on the received instruction (step 272). At this time, the terminal registration unit 45 also cancels the registration of the role in the subset.
Since the connection of the terminal 12 constituting the subset SUBG to the electronic conference system 10 is continued, the registration as the slave terminal S is continued.
In the present embodiment, the server device 11 notifies the changed registration information (step 273). For example, the server device 11 notifies the first slave terminal GM of the corresponding subset SUBG_1 that the second slave terminal GS has left. Further, the server device 11 is notified to the terminal 12 (former second slave terminal GS) that has left the subset SUBG_1 that it is the slave terminal S of the electronic conference system 10.

<Other embodiments>
Although the embodiments of the present invention have been described above, the technical scope of the present invention is not limited to the scope described in the above embodiments. It is clear from the description of the claims that the above-described embodiment with various modifications or improvements is also included in the technical scope of the present invention.

For example, in the description of the above-described embodiment, the server device 11 relays all communications, but an electronic conference system 10 that does not use the server device 11 may be configured. Even in this case, all communication may be relayed by the main terminal M operating as the server device 11. However, while the management functions are centralized in the main terminal M, communication between the terminals may be executed by a multi-hop method.
FIG. 27 is a diagram illustrating communication of the electronic conference system 10 by the multi-hop method.
In FIG. 27, the main terminal M provides the function of the server device 11.

For example, the instruction from the main terminal M to the first slave terminal GM is directly transmitted, while the instruction to the second slave terminal GS is relayed by the first slave terminal GM to the second slave terminal GS. It is transmitted (step 281).
Further, the instruction from the first slave terminal GM to the second slave terminal GS is directly transmitted (step 282).
Further, the request from the second sub-terminal GS to the main terminal M is relayed by the first sub-terminal GM and transmitted to the main terminal M (step 283), and the response at the main terminal M is the first sub-terminal. It is relayed by GM and transmitted to the second slave terminal GS (step 284).
The request from the first slave terminal GM to the main terminal M is directly transmitted (step 285), and the response is also directly transmitted from the main terminal M to the first slave terminal GM (step 286).

10 ... Electronic conference system, 11 ... Server device, 12 ... Terminal, 21, 22, 22A, 22B, 23 ... Operator, 41 ... Transmitter, 42 ... Receiver, 43 ... Material storage, 44 ... Transmission management, 45 ... Terminal registration unit, M ... Main terminal, S, S1 to S6 ... Sub-terminal, GM ... First sub-terminal, GS, GS1, GS2 ... Second sub-terminal, SUBG, SUBG_1 to SUBG_3 ... Subset

Claims (7)

On the computer
The first function of determining whether the local terminal is a secondary terminal that operates by receiving an instruction from the main terminal and that belongs to a specific subset.
Is the local terminal the first secondary terminal that issues instructions to other secondary terminals in the subset and that the image displayed on the screen of the local terminal is linked to the image displayed on the main terminal via the server? , It operates in response to the instruction of the first slave terminal, and determines whether the displayed image is the second slave terminal linked to the image displayed on the screen of the first slave terminal via the server. The second function and
When the local terminal operates as the first sub-terminal, a third function of displaying an image corresponding to a part of the image displayed on the screen of the main terminal on the second sub-terminal via the server, and a third function.
When the own terminal operates as the first slave terminal, the first operator for operating the image displayed on the own terminal on the screen of the own terminal and the image displayed on the screen of the second slave terminal. A fourth function to display a second operator for operations on, and
When the control for the image displayed on the screen of the second slave terminal is received through the operation for the second operator, the fifth function of transmitting to the second slave terminal via the server and the fifth function.
A program to realize. When the instruction of the magnification of the image displayed on the second slave terminal is received through the operation on the second operator, the fifth function is different from the main terminal in that a part of the image of the main terminal is different from the main terminal. The program according to claim 1, which sends an instruction to display at a magnification. When an instruction to enlarge an image displayed on the second slave terminal is received through an operation on the second operator, the fifth function is an instruction to enlarge and display a part of the image of the main terminal. The program according to claim 2. The program according to claim 1, wherein the part of the image of the main terminal is a photograph or a figure or a table. When the own terminal operates as the first slave terminal, a sixth display corresponding to the part of the image of the main terminal and displaying an image different from the second slave terminal on the screen of the own terminal. The program according to claim 1, wherein the computer executes a function. The program according to claim 5, wherein when the local terminal operates as the first secondary terminal, an image of the main terminal is displayed on the screen of the second secondary terminal at a magnification different from that of the local terminal. Consists of multiple information terminals
One of the plurality of information terminals is
The first function of determining whether the local terminal is a secondary terminal that operates by receiving an instruction from the main terminal and that belongs to a specific subset.
Is the local terminal the first secondary terminal that issues instructions to other secondary terminals in the subset and that the image displayed on the screen of the local terminal is linked to the image displayed on the main terminal via the server? , It operates in response to the instruction of the first slave terminal, and determines whether the displayed image is the second slave terminal linked to the image displayed on the screen of the first slave terminal via the server. The second function and
When the local terminal operates as the first sub-terminal, a third function of displaying an image corresponding to a part of the image displayed on the screen of the main terminal on the second sub-terminal via the server, and a third function.
When the own terminal operates as the first slave terminal, the first operator for operating the image displayed on the own terminal on the screen of the own terminal and the image displayed on the screen of the second slave terminal. A fourth function to display a second operator for operations on, and
When the control for the image displayed on the screen of the second slave terminal is received through the operation for the second operator, the fifth function of transmitting to the second slave terminal via the server and the fifth function.
Information processing system that executes.

Images